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1
The biotic component of an ecosystem consists of _______________
Plants, animals and soil
Green plants, temperature and algae
Producers, consumers and decomposers
Air, water and soil
2
Which is the abiotic component of a pond ecosystem?
Fish
Frog
Water
Bacteria
3
When a producer or a consumer dies,______________________ act to break down or decompose the dead material of its body into the nutrient substances it was made up of.
Fungi
Both (a) and (b) are correct.
None of these.
4
The plants found in a particular area are termed as __________________
Species
Flora
Forest
Fauna
5
A non - renewable resource is ________________
Coal
Wild life
6
An ecosystem consists of ____________________________________________
Green plants and animals
Green plants and decomposers
Producers and consumers
Green plants, animals, decomposers and abiotic environment
7
Which of the following is a decomposer ?
Plants
Algae
Protozoa
8
Two components of ecosystem are ________________
Plants and animals
Trees and fungi
Living and non living
Fogs and man
9
Environment consists of
Land, air, water
Light, temperature and rainfall
Plants, animals and microbes
All the above
10
absorbs some of the ______________ that radiates from the surface of earth to space.
Ozone
Heat
Ultraviolet light
Smog
11
An area made up of living components like plants, animals and microorganisms along with non-living component such as climate, soil etc is known as __________________
Ecosystem
Population
Community
Organism
12
On which of the following positions can a tiger be placed in a food chain?
Primary consumer
Producer
Decomposer
Tertiary consumer
13
The mode of nutrition of decomposers is ____________________
Autotrophic
Saprophytic
Parasitic
None of the above
14
In an ecosystem the function of the producers is to __________________
Convert organic compounds into inorganic compounds
Trap solar energy and convert it into chemical energy
Utilize chemical energy
Release energy
15
Wind dispersed seeds that have _____________________
Wings & hair
Hooks
Fibrous outercoat